by Hill’s
Adult
Regular

Hill’s

Science Plan - Adult 1-6 with Chicken

Adult
Regular
1

First Ingredient

Animal Protein

Flavor

Chicken

Kibble Size

~9 mm

Approximate diameter or width of each kibble
Cat Food Central Quality Score: 46 out of 100
800 views

Available sizes

300 g
10.6 oz
1.5 kg
3.3 lb
3 kg
6.6 lb
7 kg
15.4 lb
10 kg
22 lb
15 kg
33.1 lb

Summary

Hill’s Science Plan – Adult 1-6 with Chicken is a dry formula for adult cats aged 1–6, designed to support daily maintenance with balanced protein, fat, and minerals.
The first ingredient is chicken and turkey meal, listed at 26% with chicken at 16%, supplying concentrated animal protein to help maintain lean muscle and overall body strength.
At 31.9% crude protein and 19.7% fat, the diet delivers the amino acids and energy adult cats need, helping sustain activity levels and healthy body condition when portioned appropriately.
Carbohydrates at 37.5% come mainly from wheat, maize, and broken rice, providing readily available energy but also increasing overall starch content.
Fish oil contributes long-chain omega-3s, and the declared omega-3 (0.42%) and omega-6 (3.04%) levels support skin and coat health and a balanced inflammatory response.
Calcium at 0.75% and phosphorus at 0.74% work together to support bone and dental health in adult cats.
Magnesium at 0.082% and sodium at 0.42% reflect a controlled mineral profile that supports urinary tract health and normal fluid balance.
Dried beet pulp provides fermentable fiber to nourish beneficial gut bacteria and promote regular stools despite a low crude fiber level (1.4%).
Antioxidant support includes vitamin E (722 IU/kg), vitamin C (115 ppm), and beta-carotene (2.84 ppm), which help protect cells from oxidative stress.
Taurine at 0.19% supports normal heart function and vision, a non-negotiable requirement for feline health.

Pros
Expand All
1

Concentrated animal protein

Chicken and turkey meal (26%, with chicken at 16%) provide highly digestible, muscle-supporting amino acids for adult maintenance.
2

Defined fatty acid profile

Omega-6 at 3.04% and omega-3 at 0.42%, aided by fish oil, support skin and coat quality and help maintain a healthy inflammatory balance.
3

Bone and urinary support

Calcium at 0.75%, phosphorus at 0.74%, and magnesium at 0.082% offer a controlled mineral balance for skeletal health and urinary tract support.
4

Antioxidant fortification

Vitamin E (722 IU/kg), vitamin C (115 ppm), and beta-carotene (2.84 ppm) help protect tissues from oxidative stress and support immune function.
5

Essential taurine

Taurine at 0.19% supports normal cardiac function and retinal health, critical for all cats.
6

Electrolyte balance

Potassium at 0.8% and sodium at 0.42% help maintain proper hydration status, nerve signaling, and muscle function.
Cons
Expand All
1

Higher starch load

At 37.5% carbohydrates from wheat, maize, and rice, the diet may not suit cats whose owners prefer lower-carbohydrate feeding.
2

Plant protein inclusion

Maize protein meal contributes plant-derived amino acids, which may dilute the proportion of animal-based protein for owners seeking exclusively animal protein sources.
3

Limited fiber

Crude fiber at 1.4% offers minimal support for hairball control or enhanced satiety in some cats.
4

Very low moisture

With 4% moisture, typical of dry kibble, cats rely on drinking water to meet hydration needs, which is important for urinary health.
5

Unspecified palatant

“Digest” enhances flavor but does not specify the animal source, which may be a concern for cats with known protein sensitivities.
6

Energy-dense fat level

At 19.7% crude fat, portion control may be necessary for less active or indoor cats to prevent unwanted weight gain.

Nutrition

Ingredients

  • Chicken and turkey meal (chicken 16%; total poultry 26%)
  • Wheat
  • Maize
  • Animal fat
  • Maize protein meal
  • Broken rice
  • Digest
  • Minerals
  • Dried beet pulp
  • Fish Oil
  • and also:
Soybean oil, oat bran, vitamins, fructo-oligosaccharides, taurine, trace elements and beta-carotene. With a natural antioxidant (mixed tocopherols)

Vitamins and Additives

    Nutritional additives: 3b103 (Iron) 91.1mg, 3b202 (Iodine) 4.0mg, 3b405 (Copper) 9.0mg, 3b502 (Manganese) 9.4mg, 3b603 (Zinc) 141mg; with natural antioxidant

    Guaranteed Analysis

    Crude Protein
    31.9%
    Crude Fat
    19.7%
    Crude Fiber
    1.4%
    Moisture
    4%
    Crude Ash
    5.5%
    Calcium
    0.75%
    Phosphorus
    0.74%
    Potassium
    0.8%
    Magnesium
    0.082%
    Omega 3
    0.42%
    Omega 6
    3.04%
    Metabolizable Energy
    4161 kcal/kg
    Sodium 0.42%, Taurine 0.19 %, Vitamin A 9388 IU/kg, Vitamin C 115 ppm, Vitamin D 764 IU/kg, Vitamin E 722 IU/kg, Beta-carotene 2.84 ppm

    Guaranteed Analysis

    Crude Protein
    31.9%
    Crude Fat
    19.7%
    Crude Fiber
    1.4%
    Moisture
    4%
    Crude Ash
    5.5%
    Calcium
    0.75%
    Phosphorus
    0.74%
    Potassium
    0.8%
    Magnesium
    0.082%
    Omega 3
    0.42%
    Omega 6
    3.04%
    Metabolizable Energy
    4161 kcal/kg
    Sodium 0.42%, Taurine 0.19 %, Vitamin A 9388 IU/kg, Vitamin C 115 ppm, Vitamin D 764 IU/kg, Vitamin E 722 IU/kg, Beta-carotene 2.84 ppm
    Last reviewed:
    We periodically review this product’s details and update them to match the manufacturer’s latest published information, but some changes may not be reflected immediately. View the product change history.

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    Product changes
    Hill’s

    Science Plan - Adult 1-6 with Chicken

    Product changes

    09-01-2026
    • First Ingredient changed from Chicken and turkey meal (chicken 16%) -> Chicken and turkey meal (chicken 16%; total poultry 26%)
    • First Ingredient Value changed from 26% -> %
    23-11-2025
    • Crude protein changed from 32.3% -> 31.9%
    • Crude fat changed from 20.5% -> 19.7%
    • Moisture changed from 5.5% -> 4%
    • Crude ash changed from 5.3% -> 5.5%
    • First Ingredient changed from Chicken (39%) and turkey meal -> Chicken and turkey meal (chicken 16%)
    • First Ingredient Value changed from % -> 26%
    • 5th Ingredient changed from Maize gluten meal -> Maize protein meal
    • 6th Ingredient changed from Brewers’ rice -> Broken rice
    20-08-2025
    • First Ingredient changed from Chicken and turkey meal -> Chicken (39%) and turkey meal
    Product feedback

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    How the score is calculated?

    The actual calculation of the score is based on sophisticated and advanced algorithm that takes into account multiple parameters.

    To simplify the explanation, the calculation is based on three main criteria:

    (1) Amount of protein (more is better)

    (2) Amount of carbohydrates (less is better)

    (3) Quality and source of ingredients.

    Based on that 3 main criteria, 9 score calculation rules are used to compare the different foods.

    One major assumption is that the closer an ingredient is to the top of the ingredient list, the greater its relative weight and contribution to the food.

    In general, cat food is composed of protein, fats, carbohydrates, fibers, vitamins, and minerals.

    Protein is the most important component in a cat's diet, and cats primarily get their protein from animal meat.

    Fat is a primary source of energy and essential fatty acids.

    Carbohydrates are controversial in a cat's diet, as cats are obligate carnivores and typically consume very few carbohydrates.

    Fibers play an important role in digestion and food absorption, and vitamins and minerals are essential for different organism functions.

    Dry matter values are used to compare the amount of nutrients in different cat foods. This means that moisture is excluded from the equation to provide a more accurate comparison.

    Putting all of these and more into a formula results in a product score.

    The maximum score a cat food can receive is 100. Points are added or removed based on the score calculation rules.

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